To describe a joyful gathering or feast where guests are so unrestrained and engrossed that they might inadvertently lose their accessories like earrings and hairpins; to revel without formality.
那晚的宴席，大家推杯换盏，谈笑风生，真是遗珥坠簪，尽兴而归。
At that evening's banquet, everyone exchanged toasts and chatted animatedly, truly reveling without formality, and returned thoroughly content.
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